CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The first record of the Permian Glossopteris flora from Sri Lanka: implications for hydrocarbon source rocks in the Mannar Basin
Department of Geology, University of Peradeniya, Peradeniya, Sri Lanka.
Department of Geology, University of Peradeniya, Peradeniya, Sri Lanka.
Swedish Museum of Natural History, Department of Paleobiology.ORCID iD: 0000-0001-6723-239X
2018 (English)In: Geological Magazine, ISSN 0016-7568, E-ISSN 1469-5081, Vol. 155, p. 907-920Article in journal (Refereed) Published
Abstract [en]

Strata exposed near Tabbowa Tank, Tabbowa Basin, western Sri Lanka have yielded the

first representatives of the distinctive Permian Glossopteris flora from that country. The assemblage

includes gymnosperm foliage attributable to Glossopteris raniganjensis, roots referable to Vertebraria

australis, seeds assigned to Samaropsis sp., sphenophyte axes (Paracalamites australis) and

foliage (Sphenophyllum emarginatum), and fern foliage (Dichotomopteris lindleyi). This small macroflora

is interpreted to be of probable Lopingian (late Permian) age based on comparisons with the

fossil floras of Peninsula India. Several Glossopteris leaves in the assemblage bear evidence of terrestrial

arthropod interactions including hole feeding, margin feeding, possible lamina skeletonization,

piercing-and-sucking damage and oviposition scarring. The newly identified onshore Permian strata

necessitate re-evaluation of current models explaining the evolution of the adjacent offshore Mannar

Basin. Previously considered to have begun subsiding and accumulating sediment during Jurassic

time, we propose that the Mannar Basin may have initiated as part of a pan-Gondwanan extensional

phase during late Palaeozoic – Triassic time. We interpret the basal, as yet unsampled, seismically

reflective strata of this basin to be probable organic-rich continental strata of Lopingian age, equivalent

to those recorded in the Tabbowa Basin, and similar to the Permian coal-bearing successions

in the rift basins of eastern India and Antarctica. Such continental fossiliferous strata are particularly

significant as potential source rocks for recently identified natural gas resources in the Mannar

Basin.

Place, publisher, year, edition, pages
Cambridge, 2018. Vol. 155, p. 907-920
Keywords [en]
Glossopterids, plant–insect interactions, petroleum systems, Gondwana, continental break-up
National Category
Other Earth and Related Environmental Sciences
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-3228DOI: 10.1017/S0016756816001114OAI: oai:DiVA.org:nrm-3228DiVA, id: diva2:1275919
Funder
Swedish Research Council, 2014–5234
Note

Also funded by National Science Foundation grant (project #1636625)

Available from: 2019-01-01 Created: 2019-01-07Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full texthttps://www.cambridge.org/core/journals/geological-magazine/article/first-record-of-the-permian-glossopteris-flora-from-sri-lanka-implications-for-hydrocarbon-source-rocks-in-the-mannar-basin/EF71C7114DD6D3D24027D2290E5E09D7

Search in DiVA

By author/editor
McLoughlin, Stephen
By organisation
Department of Paleobiology
In the same journal
Geological Magazine
Other Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 14 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf